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Construction
|
Problem Noted |
Acceptable Repair Methods |
|
| Corrugated PVC Pipe | 1. Small breaks or punctures on the pipe wall | External Repairs: |
| 1. Cementing a patch or repair piece over small breaks or punctures in
the pipe. Pieces are typically pipe saddles from the pipe
manufacturer. The repairs are made by: a. Cleaning the affected area with a suitable solvent. b. Cementing the repair piece in place using a heavy bodied urethane adhesive. this requires a heavy, continuous bead of adhesive completely around the damaged area and through the full depth of the corrugations. c. Cleaning away excessive adhesive. |
||
| 2. Repair Couplings and Bands used in accordance with the pipe manufacturers specifications. | ||
| 3. Concrete collars in accordance with Index 280 of the Department's Design Standards. | ||
| 4. Pressure injection of an acceptable chemical grout. | ||
| Internal Repairs: | ||
| 1. Mechanical Repair Sleeve | ||
| 2. Leaking Joints | Internal Repairs: | |
| 1. Pressure injection of an acceptable flexible chemical grout. | ||
| 2. Internal Joint seals | ||
| Return to Selection Page | ||
